Well, that’s a song…

A black and white anime-style character with red eyes and dark hair displays a series of shifting expressions, from a wide, manic grin to a smug, closed-eyed smile, while holding a knife and speaking in Japanese text bubbles; the scene cuts between close-ups of her face and a wider shot showing her flanked by two other characters, all set against a dark background with a chain-link fence visible in one frame.